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Which of the following is a central organizing experience in most adolescents' lives?
Pathogen-Associated Molecules
Molecular structures that are recognized by the cells of the innate immune system, indicating the presence of microbial pathogens.
Cytokines
Small proteins released by cells that have a specific effect on the interactions between cells, on communications between cells or on the behavior of cells.
Cell Walls
Rigid or semi-rigid structures that surround the cell membrane of some cells, providing structural support and protection.
T Cytotoxic Cell
A type of T lymphocyte that kills cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.
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